diff --git a/internal/ingress/metric/collectors/controller.go b/internal/ingress/metric/collectors/controller.go
index e4e2655c8..4d85191ee 100644
--- a/internal/ingress/metric/collectors/controller.go
+++ b/internal/ingress/metric/collectors/controller.go
@@ -269,6 +269,7 @@ func (cm *Controller) SetSSLExpireTime(servers []*ingress.Server) {
 			}
 			labels["host"] = s.Hostname
 			labels["secret_name"] = s.SSLCert.Name
+			labels["namespace"] = s.SSLCert.Namespace
 
 			cm.sslExpireTime.With(labels).Set(float64(s.SSLCert.ExpireTime.Unix()))
 		}
